Brake mechanism and caliper for a disc brake

Abstract

The present invention concerns a brake caliper and a brake mechanism for a disc brake received in the caliper. The brake mechanism comprises a brake lever, a cross bar, one or more thrust plates and a cover. The caliper is of an open design having an opening in the wall furthest from the brake disc. A bearing bracket is mounted from the inside of the caliper in the opening.

What is claimed is:  
     
       1. A brake caliper and a brake mechanism for a disc brake received in said caliper, which brake mechanism comprises a brake lever, a cross bar, one or more thrust plates and a cover, characterized in that the caliper is of an open design having an opening in the wall furthest from the brake disc and that a bearing bracket is mounted from the inside of the caliper in said opening. 
     
     
       2. The brake caliper and mechanism of  claim 1 , characterized in that the bearing bracket has a shoulder for transmission of the reaction clamp force to the caliper and that a sealing is placed between the caliper and the bearing bracket in a groove of the shoulder of the bearing bracket. 
     
     
       3. The brake caliper and mechanism of  claim 1 , characterized in that the opening of the caliper allows machining of the inside of the caliper through said opening. 
     
     
       4. The brake caliper and mechanism of  claim 1 , characterized in that the bearing bracket forms a module of the brake mechanism together with the lever of the brake mechanism and that the rest of the brake mechanism forms one module held together by a sweep. 
     
     
       5. The brake caliper and mechanism of  claim 4 , characterized in that the lever is fixed to the bearing bracket by means of clips. 
     
     
       6. The brake caliper and mechanism of  claim 1 , characterized in that an adjuster mechanism is furnished for adjustment of the clearance between the brake pads and the brake disc, and that the adjuster mechanism is a part of a synchronisation unit also comprising adjustment and reset shafts. 
     
     
       7. The brake caliper and mechanism of  claim 6 , characterized in that the synchronisation unit is placed in the bearing bracket. 
     
     
       8. The brake caliper and mechanism of  claim 7 , characterized in that the adjuster mechanism is placed on a synchronising shaft connecting the adjustment and reset shafts by means of pinions and crown wheels. 
     
     
       9. The brake caliper and mechanism of  claim 7 , characterized in that the adjuster mechanism is furnished on an adjustment shaft on top of and adjacent a thrust screw. 
     
     
       10. The brake caliper and mechanism of  claim 6 , characterized in that the synchronization unit comprises one or more gear wheels placed between and drivingly connected to the adjustment and reset shafts. 
     
     
       11. The brake caliper and mechanism of  claim 9 , characterized in that the lever is acting on the cross bar by means of an intermediate part. 
     
     
       12. The brake caliper and mechanism of  claim 11 , characterized in that the intermediate part is a rocker received in a groove of the cross bar. 
     
     
       13. The brake caliper and mechanism of  claim 11 , characterized in that the intermediate part is a stud. 
     
     
       14. The brake caliper and mechanism of  claim 11 , characterized in that force amplification characteristics of the brake mechanism is controlled by amending the form and/or the positions of the surfaces in contact of the lever and intermediate part and/or the length of the lever. 
     
     
       15. The brake caliper and mechanism of  claim 11 , characterized in that the cover is fixed to the caliper and that a return spring is positioned between and acting on the cross bar and the cover. 
     
     
       16. The brake caliper and mechanism of  claim 15 , characterized in that the cross bar is guided in the caliper in such a way that it is allowed to move in the thrust direction and in the tangential direction of the brake disc. 
     
     
       17. The brake caliper and mechanism of  claim 16 , characterized in that the lever, the intermediate part and the one or more thrust plates are movable together with the cross bar.